Check Valve 1.greater intensity,toughness 2.meet any requirements according to your samples 3.Preventing backflow
Detailed specification of Check Valve:
Duckbill valve is our special product,and it is used for draining sewage.In such foreign countries as Spain or America,it is usually named as duckmouth-shaped valve.We are continuoully doing our best to make this valve more practical and more perfect.The valve can be matched with straight pipeline,flange pipe,cement pipe.At the same time,they may be widely used on the coast,seasands,reservoirs,and so on in order to dispose the sewage or to dredge the floods .Indeed ,it is environmentally-friendly valve.
Matdhing Pipeline DN | Valve Step(A) | Pipeline Touching(B>) |
1/2-3/4 | 15 | 15 |
1-1-1/4 | 20 | 20 |
1-1/2-2-1/2 | 25 | 25 |
3 | 40 | 40 |
4 | 50 | 50 |
6 | 50 | 50 |
8 | 50 | 50 |
10 | 50 | 50 |
12-14 | 100 | 100 |
16-20 | 150 | 150 |
24-36 | 200 | 200 |
42 | 250 | 250 |
48-60 | 300 | 300 |
72 | 400 | 400 |
Advantages of Duckbill Check Valve
1,Low headloss in direction of flow
2,Minimal maintenance
3,Preventing backflow
4,Self cleaning
5,Withstanding wearing
6,Quiet operation
Duck bill Check Valve
